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mdbx: добавление MDBX_opt_writethrough_threshold и сопутствующие доработки.

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This commit is contained in:
Леонид Юрьев (Leonid Yuriev)
2022-12-03 14:55:38 +03:00
parent 822952ef01
commit 23d236f70e
6 changed files with 266 additions and 113 deletions
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36
src/lck-windows.c
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@@ -152,8 +152,10 @@ static __inline int flock(HANDLE fd, unsigned flags, size_t offset,
static __inline int flock_data(const MDBX_env *env, unsigned flags,
size_t offset, size_t bytes) {
return flock_with_event(env->me_fd4data, env->me_data_lock_event, flags,
offset, bytes);
const HANDLE fd4data =
env->me_overlapped_fd ? env->me_overlapped_fd : env->me_lazy_fd;
return flock_with_event(fd4data, env->me_data_lock_event, flags, offset,
bytes);
}
static int funlock(mdbx_filehandle_t fd, size_t offset, size_t bytes) {
@@ -195,17 +197,19 @@ int mdbx_txn_lock(MDBX_env *env, bool dontwait) {
if (env->me_flags & MDBX_EXCLUSIVE)
return MDBX_SUCCESS;
int rc = flock_with_event(env->me_fd4data, env->me_data_lock_event,
const HANDLE fd4data =
env->me_overlapped_fd ? env->me_overlapped_fd : env->me_lazy_fd;
int rc = flock_with_event(fd4data, env->me_data_lock_event,
dontwait ? (LCK_EXCLUSIVE | LCK_DONTWAIT)
: (LCK_EXCLUSIVE | LCK_WAITFOR),
DXB_BODY);
if (rc == ERROR_LOCK_VIOLATION && dontwait) {
SleepEx(0, true);
rc = flock_with_event(env->me_fd4data, env->me_data_lock_event,
rc = flock_with_event(fd4data, env->me_data_lock_event,
LCK_EXCLUSIVE | LCK_DONTWAIT, DXB_BODY);
if (rc == ERROR_LOCK_VIOLATION) {
SleepEx(0, true);
rc = flock_with_event(env->me_fd4data, env->me_data_lock_event,
rc = flock_with_event(fd4data, env->me_data_lock_event,
LCK_EXCLUSIVE | LCK_DONTWAIT, DXB_BODY);
}
}
@@ -218,7 +222,9 @@ int mdbx_txn_lock(MDBX_env *env, bool dontwait) {
void mdbx_txn_unlock(MDBX_env *env) {
if ((env->me_flags & MDBX_EXCLUSIVE) == 0) {
int err = funlock(env->me_fd4data, DXB_BODY);
const HANDLE fd4data =
env->me_overlapped_fd ? env->me_overlapped_fd : env->me_lazy_fd;
int err = funlock(fd4data, DXB_BODY);
if (err != MDBX_SUCCESS)
mdbx_panic("%s failed: err %u", __func__, err);
}
@@ -451,18 +457,20 @@ static void lck_unlock(MDBX_env *env) {
SetLastError(ERROR_SUCCESS);
}
if (env->me_fd4data != INVALID_HANDLE_VALUE) {
const HANDLE fd4data =
env->me_overlapped_fd ? env->me_overlapped_fd : env->me_lazy_fd;
if (fd4data != INVALID_HANDLE_VALUE) {
/* explicitly unlock to avoid latency for other processes (windows kernel
* releases such locks via deferred queues) */
do
err = funlock(env->me_fd4data, DXB_BODY);
err = funlock(fd4data, DXB_BODY);
while (err == MDBX_SUCCESS);
assert(err == ERROR_NOT_LOCKED ||
(mdbx_RunningUnderWine() && err == ERROR_LOCK_VIOLATION));
SetLastError(ERROR_SUCCESS);
do
err = funlock(env->me_fd4data, DXB_WHOLE);
err = funlock(fd4data, DXB_WHOLE);
while (err == MDBX_SUCCESS);
assert(err == ERROR_NOT_LOCKED ||
(mdbx_RunningUnderWine() && err == ERROR_LOCK_VIOLATION));
@@ -522,7 +530,9 @@ static int internal_seize_lck(HANDLE lfd) {
}
MDBX_INTERNAL_FUNC int osal_lck_seize(MDBX_env *env) {
assert(env->me_fd4data != INVALID_HANDLE_VALUE);
const HANDLE fd4data =
env->me_overlapped_fd ? env->me_overlapped_fd : env->me_lazy_fd;
assert(fd4data != INVALID_HANDLE_VALUE);
if (env->me_flags & MDBX_EXCLUSIVE)
return MDBX_RESULT_TRUE /* nope since files were must be opened
non-shareable */
@@ -554,7 +564,7 @@ MDBX_INTERNAL_FUNC int osal_lck_seize(MDBX_env *env) {
return err;
}
jitter4testing(false);
err = funlock(env->me_fd4data, DXB_WHOLE);
err = funlock(fd4data, DXB_WHOLE);
if (err != MDBX_SUCCESS)
mdbx_panic("%s(%s) failed: err %u", __func__,
"unlock-against-without-lck", err);
@@ -564,8 +574,10 @@ MDBX_INTERNAL_FUNC int osal_lck_seize(MDBX_env *env) {
}
MDBX_INTERNAL_FUNC int osal_lck_downgrade(MDBX_env *env) {
const HANDLE fd4data =
env->me_overlapped_fd ? env->me_overlapped_fd : env->me_lazy_fd;
/* Transite from exclusive-write state (E-E) to used (S-?) */
assert(env->me_fd4data != INVALID_HANDLE_VALUE);
assert(fd4data != INVALID_HANDLE_VALUE);
assert(env->me_lfd != INVALID_HANDLE_VALUE);
if (env->me_flags & MDBX_EXCLUSIVE)